<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Template</title>
</head>
<body>

<div id="app">
    <h2>{{fullname}}</h2>
</div>

<script src="../js/vue.js"></script>
<script>
    const app = new Vue
    (
        {
            el : "#app",
            data : 
            {
                firstName : 'Lebron',
                lastName : 'James',
            },
            computed : 
            {
                //简写
            //     fullname : function () 
            //     {
            //         return this.firstName + ' ' + this.lastName;
            //     }

                // 原生
                fullname :
                {
                    set : function (newValue)
                    {
                        console.log('执行setter函数' + newValue);
                        const names = newValue.split(' ');
                        this.firstName = names[0];
                        this.lastName = names[1];
                    },
                    get : function ()
                    {
                        return this.firstName +' ' + this.lastName;
                    }
                }
            }
        }
    )
</script>
    
</body>
</html>